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Finding the Fourth Proportional to 229,607.33, 316,861.90 and 126,245.90

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Solution

The fourth proportional to 229,607.33, 316,861.90 and 126,245.90 is: 174,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,607.33 : 316,861.90 = 126,245.90 : x
  2. Step 2: Convert to fraction form
    229,607.33/316,861.90 = 126,245.90/x
  3. Step 3: Cross multiply
    229,607.33x = 316,861.90 × 126,245.90
  4. Step 4: Simplify right side
    229,607.33x = 40,002,515,741.21
  5. Step 5: Solve for x
    x = 40,002,515,741.21/229,607.33
  6. Step 6: Final answer
    x = 174,221.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.